A_C,

3) Now, physically get down on all fours and slowly crawl around

That's a good trick, but the results depend on the key of the music that's
playing. Remember, the response in a room varies by location *and*
frequency. If the music's frequencies don't align with the room modes, this
technique may not work as well as expected. I think a better solution is to
play pink noise or some other "broadband" low frequency source while you
crawl around.

--Ethan